<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .father{
            width: 500px;
            height: 500px;
            background-color: pink;
        }
        .son{
            width: 250px;
            height: 250px;
            background-color: aqua;
        }
    </style>
</head>
<body>
    <div id="app">
        <h3>v-model修饰符.trim .number</h3>
        姓名：<input v-model.trim="username" type="text"><br>
        年纪：<input v-model.number="age" type="text"><br>


        <h3>@事件名.stop    阻止冒泡</h3>
        <div @click="fatherFn" class="father">
            <div @click.stop="sonFn" class="son">儿子</div>
        </div>
       

        <h3>@事件名.prevent     阻止默认行为</h3>
        <a @click.prevent href="http://www.baidu.com">阻止默认行为</a>


       </div> 
    
       <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>
       <script>
        const app=new Vue({
            el:'#app',
            data:{
                username:"",
                age:""
            },
            methods:{
                fatherFn(){
                    alert("点击了父亲")
                    
                },
                sonFn(){
                    alert("点击了儿子")
                }
            }
        })
       </script>
</body>
</html>